Acetylene-gas generator.



} No. 670,542..- P'at'ented Mar; 26, 1am.

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AOETYLENE GAS GENERATOR. (Application fllid Apr. 1, 1898. Ronewed'Aug;28, 1900.) (No Mullah) 5 Shuts-Sheet l 2 ATTOHNE THE Noam: mus comarb-umawwmmurou. u c.

Patented Mari 26, mm.

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FIG/i?- J.-$T. L.- MOGINN.

' AGET YLENE GAS GENERATOR.

(Applictinn filed. Apr. 1, 189B. Renewed mg. 2a, 1900.

(No Model.)

N0. 670,542. Patented Mar. 26, I901.

1.81. L. mama. .AGEIYLENEEAS GENERATOR.

- (Application filed. Apr. 1, 1898. Renewed Aug. 28, 1900.)

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Patented mar. :6, 19m;

J. ST, L.MOG|NN..

AOETYLENE GAS GENERATOR.' (Application filed A 1, web; Renewed Aug. 23,1900.)

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(In Iodel.)

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UNITED STATESPATENT OFFICE.

JOHNST. Leena t ceINN, on WINNIPEG, oANADA, ASSIGNOR TO CHARLES cUsHINeHOLLAND, (rnnsrnn) or MONTREAL, CANADA.

ACETYLEN'E-GAS EN ,ERATOR.

SPECIFICATIlON forming part of Letters Patent No. 670,542, dated March26, 1901 Application filed April 1, 1898. Renewed August 23, 1900.Serial lilo, 27,822. (No model.)

To all whom it may concern:

Beit knownthat 1, JOHN STVLEGER Mo: GINN, of Winnipeg, in the Provinceof Manitoba and Dominion of Canada, have invented a new and ImprovedAcetylene-Gas Generator, of which the following is a full, clear, andexact description. i

The object of the invention is to provide new andimproved acetylene-gasgenerator so IO arrangedas to govern the generation of thegasautomatically and according to the amount consumed.

The invention consists of novel features andparts and combinations ofthe same, as

1 5 will be described hereinafterand then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a sectional side elevation of the improvement with one ofthe generators out '5 of action. Fig. 2 is a plan view of the same. Fig.3 is a sectional plan view of one of the generators on the line 3 3 ofFig. 1. Fig. 4 is -a plan view of the same with the cover and thecarbid-cups removed. Fig. 5 is an enlarged sectional side elevation ofthe watersupply device. Fig. dis a sectional plan view of part of thesame on the line 6 6 of Fig. 5. Fig. 7 is a transverse section of thesame on the line 7 7 of'Fig. 1. Fig. 8 is a transverse section of theimprovement on the line 8 8 of Fig. 1. Fig. 9 is a sectional sideelevation of a modified form of tripping device for the carbid-cnps.Fig. 10 isa sectional side elevation of a modified'form of theimprovement, and Fig. 11 is a transverse section of the same on the line11 ll of Fig. 10.

0 The lIIIPI'OXBd machine is provided with one, two, or more generatorsA A alike in construction and. each connected by a pipe B with agas-holder C of suitalole dimensions for receiving and storing the gasproduced,

said holder being connected by a suitable pipe with the burners at whichthe gas is to be burned. The Water necessary for the generalion of gasin the'generators A A is supplied by a water-measuring devicetD,arranged to supply the generators with Lucas-- ured quantities of waterfrom time'to time,

however, being the same in each case. .cups or boxes F are arrangedabove each according .to the amount of gas Withdrawn from the holder (J.The measuring device D is connected by a pipe E with a suitable sourceof water-supply, and the detail constructionof the said device will bedescribed more fully hereinafter. v Each of the generators A A isprovided with a casing A supported on a'cover A carried by a bracket onthe holderC, said casing being provided with an annular flange A engagedby a clamp A extending over the cover A and engaged by a clampingscrew.A, resting on the top of the cover A to hold the cover in position onthe casing. By loosening the screw A the clamp A releases the cover Afrom the casing (see generator A in Fig. l) to permitof removing thecasing for emptying the same of water and refilling the cups F,adapted-t0 be supported 1 in the casing and arranged to contain calciumcarbid.

Each of the casings A is provided with a suitable removable f ramework Gfor supporting the calcium-carbid cups-or boxes F one above the other inone, two, or more tiers, as

will be readily understood by reference to Fig. 1--tliat is, thegenerator A has a frame with one tier of cups and the generator A isprovided with two tiers of cups, the action,

The

other and are supported independently of one another and aresuccessively released and .pass downward into the Water accumulating inthe casing'A so that the calcium carbid is submerged in the water andthe gas is gen- I erated in the usual manner, the gas rising through thewater to cool off and to then pass through the pipe B to the holder C. aIn order toindepe'ndently support the boxes.

F in the frame G and to automatically trip the same successively, Iprovide the following arrangement: Each of the boxes or cups is providedwith two guide-pins F F fitted 5' to slide in a vertical guideway formedbytwo bars G G secured to the frame G, the

A bar G being provided with sets of slots G to allow of introducing theboxes F sidewise through the slots for the pins F F to reach too thevertical guideway. The bar G projects at the inside of the verticalbrace G of the.

frame G to permit the ready introduction of the boxes, as will bereadily understood by reference to Fig. 3. The sets of slots G arespaced far enough apart to keep the boxes separate, each of the boxeshaving the uppermost pin F engaged at each side by a hook F fulcrumed onthe guideway-bar G and formed with an extension F reaching to a guidewayG ,carried by the frame G, and containing a float H, adapted to rise andfall in the casing A The float H has its guide-pins H H extendingthrough the guideways G the uppermost pin being adapted to engage thefree end of the extension 1?, so that when the water accumulates in thecasing A and the float rises the said pin H moves the ex tension Fupward to finally swing the hook F out of engagement. with the pin F sothat this particular box or cup F is released and slides downward intothe water and submerges the calcium cal-bid for the generation of gas,as previously mentioned. It is evident from the foregoing that thecalciumcarbid boxes or cups F are successively released, beginning withthe lowermost one, upon the water rising in the casingA and carrying thefloat H upward to trip the boxes, as above mentioned.

In case two tiers of boxes are used, as indicated, in the generator A,then the boxes are so arranged that the extensions F of thesupporting-hooks reach alternately from the two tiers to the guideways Gso that the float H in rising releases first a box in one tier, and thena box in the other tier, and then the second box on the first tier, andso on, releasing the boxes alternately from the tiers for the generationof gas.

In order to supply the casing A of a generator with measured quantitiesof water, delivered to the casings at intervals, according to theconsumption of the gas withdrawn from the holder G, I provide thefollowing arrangement, special reference being had to Figs. 1, 5, 6, and7: The water-measuring device D is provided with a casing D, formed withtransversely-arranged valve-seats D D dividing the said easing into anupper compartment D connected with the supply-pipe E, a middlecompartment D and a lower compartment D having an outlet Ddischarginginto a chute I, pivoted at or near its middle on the upperendof a hopper J, provided in its bottom with two pipes J J leading to thecovers A of the two generator-casings A as is plainly indicated in Fig.l.

The ends of the pipes J J open into pipes K, extending in the casings Ato within a short distance of the bottoms thereof, so as to deliver thewater to the casings at this point. Each of the pipes J J is providednear its entrance to the cover A with a valve-casing J containing avalve J, the stem J of which extends through the cover A to the insideof the casing to be engaged by a crossbar G, carried by the frame G inthe corresponding generating-casing A Thus when the cover A carries thecasing A as shown at the right in Fig. 1, the valve J is lifted off itsseat and the water can readily flow from the pipe J to the pipe K inthis casing; but when the cas ing is disconnected from its cover, asshown at the left in Fig. 1, then the valve J in the pipe J seats itselfin the casing J to prevent water from passing down the pipe and fromflowing out of the same. Thus when a cas ing A is disconnected from itscover the corresponding pipe J or J is automatically closed at its lowerend. A similar arrange ment is in each gas-pipe B-that is, the pipe 13is provided with a valve-casing 13, containing a valve B having its stemB extending through the cover A into the inside of the casing A to beengaged by a cross-bar G carried by the frame G, to hold the valvenormally on its seat. When the casing is disconnected from the cover,the valve D closes by its own weight to prevent gas from escaping fromthe holder by way of the pipe 1-.

The bottom of the hopper J is provided with a transversely-extendingpeak-shaped partition J for separating the inlets to the pipes J J, sothat the water passing down the chute I into the hopper J first flowsdown the pipe J to the casing A of the generator A, and after the saidcasing is filled with water, as hereinafter more fully described, thenthe water overflows the partition J G and passes down the pipe J to theother casing A of the generator A, so that the latter is now broughtinto action for generating gas, while the other casing for the generatorA may be removed and emptied 0f the water and of the carbid cups orboxes for replenishing the boxes with new calcium carbid.

In the hopper J is arranged a dividingwing J fulcrumed on a shaft Jjournaled in the sides of the hopper J, and one outer end of the shaftis provided with an arm J", loosely i engaging two pins J on a rod .1,fitted to slide longitudinally in suitable bearings J carried by thecovers A of the two generating-casings A The rod J, as shown in Fig. 1,extends with one end over the head of the screw A for the generator,while the other end is clear of the head of the screw A for thegenerator A. This indicates that the wing J is in such a position thatthe water from the chute I passes to the pipe J and generator A, and thescrew A is thus locked in position. Now when the casingA for thegenerator A has been filled with water and the calcium carbid thereinhas been utilized and the overflow begins from the hopper J into thepipe J then the operator shifts the rod J from the right to the lefttoimpart a swinging motion to the arm J and to the wing J to move thesame into a reverse position to direct the water from the chute Idirectly to the pipe J The screw-rod A is then unlocked to permit ofremoving the casing A for the generator A for the purpose previouslydescribed.

The valve-seat D in the casing D is formed with apertures normallyclosed by a valve L,

provided with a down wardly-extending stem I L, journaled in suitablehearings in the middle of the said seat D The lower end of the stem L ispivotally connected with astem L for a valve L operating over thevalve-seat D and arranged in such a manner relatively to the valve Lthat when the latter is closed the valve L is opened to establishcommunication between the compartments D and D. A quarter-turn given tothe connected valves L and L closes the valve L upon its seat D andopens the valve L from its seat D to permit water from the compartment Dto fill the compartment D and at the next quarter-revolution given tothe valves the valve L again closes on its seat D and the other valve Lleaves its seat to allow the water to pass from the compartment D to thecompartment D and from the latter to the outlet D over the chute I tothe hopper J for delivery to the generator A or A.

The valye L is provided at its lower end with a stem L mounted to turnin a sleeve D connecting the. bottom of the casing D with the seat D andthe said stem L is pivotall y connected with a shaft L likewisejournaled in the said sleeve and carrying at its lower enda-ratchet-wheel L engaged by a pawl L fulcrumed on a bevel gear-wheel N,mounted to rotate loosely on a suitable bearing formed on the lower endof the sleeve D below the bottom of the casing D. The bevel gear wheel Nis in mesh with a bevel gearwheel N, mounted to turn on a stud N car'-ried by the casing D, and the said bevel gearwheel N is rigidlyconnected with a starwheel N preferably formed with four arms, asplainly indicated in Fig. 7. The star-wheel N is engaged by pins 0 O 0 Oplaced an equal distance apart and one above the other on a rod 0 havingan up-and-down motion according to the pressure of the gas in the holder(J, the said rod being controlled by a device P,actuate'd by thepressure from within the holder 0.

When the rod 0 is in an uppermost position and the controlling device Pcauses the rod to move downward at the time-the pressure Within theholder 0 is less than required for supplying the burners with thedesired amount of gas and it becomes necessary to generate a new chargeof gas in the generator A or A, then the downward movement of the rod 0brings the pin 0 in engagement with one of the wings of the star-wheel Nto give the latter a quarter-turn, so that the gear- 'wheel N transmitsarotary motion to the gearwheel N, which by the pawl L imparts aquarter-revolution to the ratchet-wheel L so that both valves L and Lare given a quarter-turn to close the valve-seat D and to open thevalve-seat D When this takes place, the middle compartment D is filledwith water from the compartment D and upon farther descent of the rod 0the second pin 0 gives another quarter-turn to the star-wheel-N so thatthe valves L L are againgiven a quarter-turn to cut oft the compartmentD from the compartment D and to connect the compartment D with thecompartment D, so that the water flows from the compartment D throughthe compartment D and outlet Dlto the hopper J to deliver a measuredquantity of water to the generator A or A. In case the quantity of waterdelivered is not sufficient for generating a quantity of gas necessaryto bring the pressure in the holder C up to the required amount the rodOdescends still farther and brings the pins 0 O successively in action inthe same manner as the pins 0 O and for the same purposethat is, tomeasure another quantity of water and deliver the same to thegenerator-casing A When the pressure of gas in the holder 0 increases,the rod 0 is returned to its former position, and in doing so the pins 0O O O successively rotate the star-wheel N 7 but the valves L L nowremain stationary,as the pawl- L simply glides back over the teeth ofthe ratchet-wheel L without turning the latter.

In order to increase the amount of water in the measuring device, Iprovide the following device: The compartment D is connected by a pipe Qwith a reservoir Q, containing a movable plunger Q held on a screw Qscrewing inithe top Q of the reservoir Q. When the valve L is open andthe valve L is closed, the water flowing from'the compartment D into thecompartment D can also pass through the pipe Q into the reservoir Q tofill the same up to the movable plunger Q and by moving the latter up ordown the supply of wa ter needed to fill the said reservoir may beregulated. When the valve L closes and the valve L opens, then the waterfrom the compartment D as well as that from the reservoir Q, isdischarged into the compartment D for delivery to thegenerator-cascontrols the position of the chute I, and for this purposethe latter is provided at its outer end with pins I, engaging the freeend of the arm I of a bell-crank lever 1 fulcrumed on a stud I carriedby the holder 0. The other arm 1 .01 the bell-cranl lever is'p'rovidedwith a cam end 1, adapted tobe en-- gaged by the lower end of the rod 0upon the descent of the latter to imparta swinging motion to thebell-crank lever and move the chute I into the position shown in Fig. 5,so that the water passing down the outlet 1 is delivered by thesaid-chute I into the hopper J. The rod 0 while in a lowermost positionabuts against the cam end I to hold the bell-crank lever in thisposition, and as soon as the rod 0 has moved upward and. the lower endhas left the cam end I then the chute I swings into an outermostposition, as shown in Fig. 1, by the combined action of the overbalancedend of the chute and the overbalancing-arm I of the lever. IVhen thechute I is in this position, any drip-water from the compartment D isdelivered to the chute I atone side of the machine. Consequently thisdrip-water does not pass to the generatorcasing.

The controlling device P is provided with two vertically-disposed pipesP P connected with each other at their lower ends by a pipe P the pipesbeing filled with water or other liquid to about the level indicated inFig. 1. In the pipes P P are fitted the pipes P P, respectively, closedat their upper ends, their lower open ends being immersed in the liquidcontained in the pipes P P Into the pipes P P extend the stand-pipes PP', connected with the holder 0, so that gas can pass from the latterinto the said pipes P P. The pipe P is provided near its lower end witha valve P for closing said pipe after a sufficient amount of gas hasbeen admitted to the pipe P according to the pressure desired to bemaintained in the holder G. The pipe P carries the rod 0, previouslymentioned, and the upper ends of the pipes P P are connected with eachother by a double lever P so that the rising of one pipe causes thedownward movement of the other, and vice versa. The pipe P is providedat the top with a reservoir P to allow of maintaining a large quantityof gas in the pipe P When the pressure in the holder 0 falls below thenormal degree desired, then the pres sure in the pipe P decreasescorrespondingly, while the preponderance of pressure in the pipe Pcauses a rising of the said pipe P in the pipe P and consequently aswinging motion is given to the lever P so that the pipe P movesdownward correspondingly to the rise of the pipe P The downward movementof the pipe P' causes the rod to move in a like direction for actuatingthe watermeasuring device D, as previously explained, so that waterpasses to the generators and a new charge of gas is produced to bringthe pressure in the holder 0 up to a normal pressure. An increase ofpressure in the holder C causes an increase of pressure in the pipe P,so that the latter returns to its former positionthat is, the two pipesagain become balanced by reason of the connection of the pipes by thelever P and of the equal pressure in both pipes. In case of an increaseoi. pressure in the holder 0 beyond that of the normal pressure the pipeP is caused to move upward, owing to the preponderance of pressure overthat in the pipe P which latter now moves downward and finally actuatesa safety device T to allow the surplus of pressure of gas to escape fromthe holder C.

The safety device T is provided with a casing T, having a valve-seat Tfor dividing the casing into an upper and lower compartment, having avalve Ticontrolling the valveseat. The upper compartment is connected bya pipe T with the holder C, and the lower compartment is provided with adischargepipe T The valve T is provided with a stem T, extending throughthe casing T to carry at its lower end an arm T engaged by an arm U of aweighted lever U, adapted to be engaged at its free end by a rod Ucarried by the pipe P When the latter moves downward, as abovedescribed, the rod U finally comes in contact with the lever U to imparta swinging motion thereto and to cause the arm U to turn the valve T sothat the latter opens and connects the upper compartment with the lowercompartment for the escape of gas from the holder 0. When normalpressure is again reached in the holder C, the pipe P ascends and thelever U by its weight swings back to its former position and moves thevalve T shut to cut off communication between the upper and lowercompartment in the casing T.

The supporting or tripping device for the carbid boxes or cups F may besomewhat varied, as indicatedin Fig. 9, in which each of the boxes issupported by a hook F having its extension F loosely connected with alever F fulcrumed on the frame G and extending with its free end intothe path of the pin H of the float H, so that the upward movement of thelatter imparts a swinging motion to the lever F which by its connectionwith the extension F moves the hook F out of engagement with the pin Fof the cup F to release the latter. Otherwise the arrange ment of thecasing A and the open frame G,

together with the float H, is the same as described in reference to Fig.1.

In the modified form shown in Figs. 10 and 11 the controlling device formanipulating the valves L and L in the wateraneasuring device D issomewhat diiferently constructed; but the result is the same as abovedescribed in reference to the construction shown in Figs. 1 and 5. Thepipes P and P of the controlling device P instead of being connected bya lever P are connected with each other by a rope P which winds once ortwice around adrum 0 arranged between the said pipes and journaled on astud 0, carried by the holder 0. Thus the rising of either pipe P or Pcauses a turning of the drum 0 and a downward movement of the other pipeP or P On the drum 0 are arranged spaced pins Ohadapted to engage astar-wheel N, which takes the place of the gear-wheel N and is likewiseconnected by the pawl L with the ratchet-wheel L ,secured to thevalvestem L of the valve mechanism in the measuring device D. When thedrum O is turned in the direction of the arrow d, the pins 0 actuate thestar-wheel N to turn the valve mechanism, and when the drum is rotatedin the opposite direction the valve mechanism remains at a standstill,as the pawl L then IIO glides overthe teeth of the ratchet-wheel L", asabove explained. 'lhe'pins 0 also actuate the arm T of the safety device1 of the con struction previously explained. The chute I for deliveringthe water from the measuring device D to the hopper J is actuated by asecond set of pins from the drum 0 The pins 0 extend transversely andare adapted to engage successively one arm of a bell-crank lever Ihaving its other arm engaging the rear end of the said chute 1 so thatwhen the drum is turned in the direction of the arrow d a pin 0 impartsa swinging motion to the bell-crank lever l to swing the overbalancedchute over to connect the spout D with the hopper J for the purposepreviously explained.

As shown in Figs. 10 and 11, the hopper J is provided with three pipes JJ and J of which the pipes J and J lead to the generators A A,respectively, and the pipe J leads to a third generator, (not shown,)but like either generator A or A. The dividingwing J is arranged todirect the water to any of the three pipes J J, or J and for thispurpose is formed with acentral hopper adapted to connect the chute IWith the middle pipe J. The connection of the wing J with the shiftingand locking bar J is the same as previously described. The waterpipe Kfor each generator-casing A is now arranged in the middle of the casinginstead of on one side, as shown in Fig. 1, and this pipe K forms aguide for the float H to slide on, as plainly shown in Fig. 11. Theupper end of the pipe K is formed with a funnel K extending under theinlets of both pipes J and B so that water can readily pass into thecasing without splashing, it being understood that water can drain downfrom the erating gas, and its water is to be drained off at the cock Aprevious to removing the casing for refilling the cups.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent 1. An acetylene-gas generator comprising agenerator-casing, independently supported calcium-carbid cups in thecasing, and a float in the said casing for successively releasing thesaid cups and carrying the calcium-carbid into the water,substantiallyas shown and described.

2. In an acetylene-gas generator, the combination with a casing, of aplurality of calcium-carbid cups in the casing and having guidedmovement therein, and means for en'- gaging the cups to independentlysupport them, said means being disengaged from the cups by the rise ofwater in the casing, as set forth.

3. In an acetylene-gas generator, the combination with a casing, of aplurality of calcium-carbid cups in the casing and having guidedmovement therein, means for engaging the cups to independently supportthem,

and a float in the said casing for disengaging Hhe supporting means fromthe cups, substantially as described.

4. In an acetylene-gas generator, the combination with a casing, of aplurality of calcium-carhid cups in the casing, hooks engag ing the cupsfor supporting them, and a float in said casing and operating todisengage the hooks from the cups, substantially as described.

5. In an acetylene-gas generator, the combination with a ca ing, of aplurality of calcium-carbid cups provided with projecting pins andhaving guided movement in the casing, pivoted hooks engaging the pins ofeach cup, and a float in the said casing and operating to disengage thehooks from the pins of the cups, substantially as described.

6. In an acetylene-gas generator, the combination with a casing, and aframe in the casing and having guideways therein, of a plurality ofcalcium -carbid cups provided With pins Working in the guideways of thesaid frame, pivoted hooks engaging the pins of the cups to support them,said hooks being provided with extensions, and a float provided withpins working in the guideways of the frame and adapted to engage theextension of the hooks, substantially as and for the purpose set forth.

7. An acetylene-gas generator comprising generator-casing, independentlysupported calcium-carbid cups in the said casing, a float in the casingfor successively releasing the said cups and carrying the calcium-carbid into the water, and a water-measuring device for delivering ameasured quantity of water into the said casing, to cause the float torise and release a cup, substantially as shown and described. A

8. An acetylene-gas generator comprising a generator-casing,independently-supported calcium-carbid cups in the said casing, a floatin the casing for successively releasing the said cups and carryingv thecalcium-carbid into the water, and a holder into which the generated gaspasses from the casing, substantially as shown and described.

9. An acetylene-gas generator comprising a generator-casing,independently-supported calcium-carbid cups in the said casing, a floatin the casing for successively releasing the said cups and carrying thecalcium-carbid into the Water, a holder into which the generated gaspasses from the casing, and a water-measuring device controlled by thegas accumulating in the said holder, the device being arranged todeliver a measured quantity of water to the said casing, to cause thefloat to rise and release a cup, substantially as shown and described.

10. An acetylene-gas generator comprising a generator-casing connectedwitha watersupply, a frame held in the said casing, a series ofcalcium-carbid cups fitted to slide in the said frame, and arranged oneabove the other, hooks carried by the frame and nor- IIS mallysupporting the cups in position and spaced apart, and a float in thesaid casing and arranged to rise with the water accumulating therein,the said float being arranged to trip the said hooks successively andrelease the cups one after the other, substantially as shown anddescribed.

11. An acetylene-gas generator provided with a generator-casing adaptedto contain calcium-carbid cups, a fixed cover for the said casing, andcarrying the water-supply pipe and the gas-escape pipe, a clamp forfastening the said casing to the said fixed cover, and a frame inovablyheld in the said casing, and adapted to carry the calcinin-carbid cups,the said frame being arranged to keep the valves in the said pipes openduring the time the casing is attached to the cover, substantially asshown and described.

12. An acetylene-gas generator provided with a water-feed-controllingdevice operated by gas-pressure comprising two connected pipes adaptedto contain a liquid, holders fitted to slide in the said pipes, andhaving their lower open ends immersed in the liquid contained in thepipes, a lever for connecting the holder-pipes with each other, and agassupply pipe for one of the holder-pipes, and connected with agas-supply the pressure of which is to be regulated, substantially asshown and described.

An acetylene-gas generator provided with a water-feed-controlling deviceoperated by gas-pressure, comprising two connected pipes adapted tocontain a liquid, holders fitted to slide in the said pipes, and havingtheir lower open ends immersed in the liquid contained in the pipes, alever for connecting the holder-pipes with each other, a gas-supply pipefor one of the holder-pipes, and connected with a gas-supply thepressure of which is to be regulated, and a second gas-supply pipehaving a valve and connected with the other holder-pipe substan tiallyas shown and described.

14. In an acetylene-gas apparatus, the combination with two generators,and a watersupply hopper connected with the generators, of adividing-wing pivoted in the hopper, and a sliding rod connected withthe pivot of the wing and adapted to be slid alternately over thegenerators, substantially as and for the purpose set forth.

15. In an acetylenegas apparatus, the (30111- bination with twogenerators provided with bearings in their covers, and a water-supplyhopper connected with the generators, of a dividing-wing pivoted in thehopper, an arm on the pivot of the wing, and a rod sliding in thebearings of the covers of the generators and with which the said arm isloosely connected, substantially as described.

JOHN ST. LEGER MGGINN.

Witnesses:

GEo. I-I. Hansms, JOHN CHAMBERS.

